The Stream33 Round Plastic Closed Front Slow Close Toilet Seat is made with high-quality polypropylene plastic with UV protection to guarantee long-lasting use and color retention. This seat features soft-closing technology that prevents slamming. Equipped with non-corrosive nuts and bolts, and a matching adjustable hinge, it ensures easy bottom mounting and adjustability to fit standard round toilets. Backed by a 2-year warranty, this toilet seat offers a reliable and comfortable addition to any bathroom.